import time
from datetime import datetime, timedelta

from info.models import User
from info.utils.common import user_login_data
from info.utils.response_code import RET
from . import admin_blue
from flask import render_template, request, current_app, jsonify, session, redirect, url_for, g


# 用户统计
@admin_blue.route('/user_count')
def user_count():

    # 总人数
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin==False).count()
    except Exception as e:
        current_app.logger.error(e)

    # 月新增数
    mon_count = 0
    t = time.localtime()
    begin_mon_date = datetime.strptime(('%d-%02d-01' % (t.tm_year, t.tm_mon)), "%Y-%m-%d")
    try:
        mon_count = User.query.filter(User.is_admin==False, User.create_time > begin_mon_date).count()
    except Exception as e:
        current_app.logger.error(e)

    # 日新增数
    day_count = 0
    begin_day_date = datetime.strptime(('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday)), "%Y-%m-%d")
    try:
        day_count = User.query.filter(User.is_admin==False, User.create_time > begin_day_date).count()
    except Exception as e:
        current_app.logger.error(e)


    # 拆线图数据

    active_time = []
    active_count = []

    # 取到今天的时间字符串
    today_date_str = ('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday))
    # 转成时间对象
    today_date = datetime.strptime(today_date_str, "%Y-%m-%d")

    for i in range(0, 31):
        # 取到某一天的0点0分
        begin_date = today_date - timedelta(days=i)
        # 取到下一天的0点0分
        end_date = today_date - timedelta(days=(i - 1))
        count = User.query.filter(User.is_admin == False, User.last_login >= begin_date, User.last_login < end_date).count()
        active_count.append(count)
        active_time.append(begin_date.strftime('%Y-%m-%d'))

    # User.query.filter(User.is_admin == False, User.last_login >= 今天0点0分, User.last_login < 今天24点).count()

    # 反转，让最近的一天显示在最后
    active_time.reverse()
    active_count.reverse()

    data = {
        "total_count": total_count,
        "mon_count": mon_count,
        "day_count": day_count,
        "active_time": active_time,
        "active_count": active_count
    }

    return render_template('admin/user_count.html', data=data)

@admin_blue.route('/index')
@user_login_data
def index():
    user = g.user
    data = {
        'user': user.to_dict() if user else None
    }
    return render_template('admin/index.html', data=data)


@admin_blue.route('/login', methods=["GET", "POST"])
def admin_login():
    if request.method == "GET":
        user_id = session.get('user_id', None)
        is_admin = session.get('is_admin', False)
        if user_id and is_admin:
            return redirect(url_for('admin.index'))
        return render_template('admin/login.html')

    # post 请求 登录管理员账号
    # 获取参数
    username = request.form.get('username')
    password = request.form.get('password')

    # 校验参数
    if not all([username, password]):
        return render_template('admin/login.html', errmsg='参数错误')
    try:
        user = User.query.filter(User.mobile == username, User.is_admin == True).first()
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg='查询失败')
    if not user or not user.check_password(password):
        return render_template('admin/login.html', errmsg='用户名不存在或密码错误')

    session['user_id'] = user.id
    session['nick_name'] = user.nick_name
    session['mobile'] = user.mobile
    session['is_admin'] = user.is_admin
    return redirect(url_for('admin.index'))
